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authorJassi Brar <jaswinder.singh@linaro.org>2014-07-22 20:40:04 +0530
committerMark Brown <broonie@linaro.org>2014-08-21 22:19:05 -0500
commitdb627fe0d7a4cc89176244747eb56542ccf95fd7 (patch)
tree332fea93c5fe570f601c8ef0d42bcc039c7306f5 /Documentation/devicetree/bindings
parentb424180b4fe67eadafbcb05da37f3e333ac329c8 (diff)
downloadlinux-linaro-stable-db627fe0d7a4cc89176244747eb56542ccf95fd7.tar.gz
dt: mailbox: add generic bindings
Define generic bindings for the framework clients to request mailbox channels. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Reviewed-by: Mark Brown <broonie@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
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+* Generic Mailbox Controller and client driver bindings
+
+Generic binding to provide a way for Mailbox controller drivers to
+assign appropriate mailbox channel to client drivers.
+
+* Mailbox Controller
+
+Required property:
+- #mbox-cells: Must be at least 1. Number of cells in a mailbox
+ specifier.
+
+Example:
+ mailbox: mailbox {
+ ...
+ #mbox-cells = <1>;
+ };
+
+
+* Mailbox Client
+
+Required property:
+- mboxes: List of phandle and mailbox channel specifiers.
+
+Optional property:
+- mbox-names: List of identifier strings for each mailbox channel
+ required by the client. The use of this property
+ is discouraged in favor of using index in list of
+ 'mboxes' while requesting a mailbox. Instead the
+ platforms may define channel indices, in DT headers,
+ to something legible.
+
+Example:
+ pwr_cntrl: power {
+ ...
+ mbox-names = "pwr-ctrl", "rpc";
+ mboxes = <&mailbox 0
+ &mailbox 1>;
+ };